Monday, August 26, 2013

Honey’s Eternal Shelf Life


Very interesting article: "The Science Behind Honey’s Eternal Shelf Life" by Natasha Geiling. Some highlights:
- Through millennia, the archeologists discover, the food remains unspoiled, an unmistakable testament to the eternal shelf-life of honey.
- Honey is, first and foremost, a sugar. Sugars are hygroscopic...
- It has a pH that falls between 3 and 4.5, approximately, and that acid will kill off almost anything...
- Bees have an enzyme in their stomachs called glucose oxidase (PDF)... this enzyme mixes with the nectar, breaking it down into two by-products: gluconic acid and hydrogen peroxide...
- The earliest recorded use of honey for medicinal purposes comes from Sumerian clay tablets...
- The ancient Egyptians used medicinal honey regularly, making ointments to treat skin and eye diseases...

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